Maybe the future of these applications will be better. But now I still believe in more famous exchange like binance, applications that can be buggy and deceptive
Binance app has disturbing features like logging out a user after 1 inactive day. I prefer to use trading applications like Tab-Trader in order to get the minimum ping on each order. For trading apps, there are security implications like trading password, second 2FA and much more. Trading-wallet type crypto applications are not safe because of the required permissions before installing the app to phone. I prefer to bookmark the link to the exchange and if the site is not mobile-friendly I use the desktop mode function of the firefox browser.